Geosounding principles: 1 Resistivity sounding measurements
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| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Amsterdam
Elsevier
1979
|
| Series: | Methods in geochemistry and geophysics
14A |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | XIV, 276 S. Ill., graph. Darst. |
| ISBN: | 0444417044 |
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MARC
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| 245 | 1 | 0 | |a Geosounding principles |n 1 |p Resistivity sounding measurements |c Otto Koefoed |
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Record in the Search Index
| _version_ | 1804121065063972864 |
|---|---|
| adam_text | Titel: Bd. 1. Geosounding principles. Resistivity sounding measurements
Autor:
Jahr: 1979
CONTENTS
PREFACE..................................................................................................VII
NOTATION................................................................................................XII
CHAPTER 1. THE PIELD PROCEDURE AND METHOD OP MEASURING . . 1
1.1 Introduction......................................................................................]
1.2 Electrode configurations......................................................................1
1.3 The choice of the site of the measurement..............................................5
1.4 The current circuit..............................................................................7
1.5 The potential measuring circuit ............................................................10
1.6 Example of a complete instrument........................................................14
CHAPTER 2. THE POTENTIAL DISTRIBUTION AT THE SURFACE OF A
HORIZONTALLY STRATIFIED EARTH ..............................19
2.1 Introduction......................................................................................19
2.2 The differential équation for a potential field with cylindrical symmetry and
its general solution..............................................................................20
2.3 Adaptation of the solution to the boundary conditions..............................23
2.4 Summary..........................................................................................27
CHAPTER 3. THE KERNEL FUNCTION AND ITS RELATION TO THE SUB-
SURFACE PARAMETERS ..................................................29
3.1 Introduction......................................................................................29
3.2 Derivation of the Flathe récurrence relation............................................30
3.3 Dérivation of the Pekeris récurrence relation............................................33
3.4 Discussion of the récurrence relations....................................................35
3.5 Ambiguity in the relation between the resitivity transform and the subsur-
face layer distribution ........................................................................38
CHAPTER 4. THE APPARENT RESISTIVITY FUNCTION..........................41
4.1 Definition of the apparent resistivity......................................................41
4.2 Calculation of the apparent resistivity from the field observations................41
4.3 The relation between the apparent resistivity and the resistivity transform
function for symmetrical linear electrode configurations............................42
4.4 The relation between the apparent resistivity and the resistivity transform
function for dipole electrode configurations............................................45
4.5 Expressions for the apparent resistivity functions in logarithmic variables ... 49
4.6 Principies of digitai linear filtering ........................................................50
4.7 Adjustment of the apparent resistivity curves in Schlumberger measurements 53
CHAPTER 5. METHODS FOR THE DETERMINATION OF RESISTIVITY
FILTERS..........................................................................59
5.1 Introduction......................................................................................59
5.2 Determination of resistivity filters by direct integration............................59
5.3 Determination of resistivity filters by Fourier transformation ....................62
5.4 Determination of the horizontal shift between input and output samples ... 68
5.5 Determination of resistivity filters by the least-squares method ..................71
5.6 Determination of resistivity filters by division of Z-transforms....................78
5.7 Auxiliary functions for the détermination and for the testing of resistivity
filters..............................................................................................83
CHAPTER 6. THE COMPUTATION OF APPARENT RESISTIVITY MODEL
CURVES ..........................................................................89
6.1 Published collections of model curves....................................................89
6.2 Computation of model curves by numerical integration ............................89
6.3 Computation of model curves by the image point method..........................90
6.4 Computation of model curves by décomposition into partial fractions..........91
6.5 Computation of model curves by the linear filter method..........................92
CHAPTER 7. APPROXIMATE INTERPRETATION METHODS....................103
7.1 The auxiliary point method..................................................................103
7.2 Interpretation methods using three-layer model curves..............................107
7.3 Interpretation method using two-layer resistivity transform curves..............112
7.4 Equivalence rules................................................................................115
7.5 The Dar Zarrouk curve........................................................................118
7.6 Examples of application of approximate interpretation methods ................122
CHAPTER 8. THE DERIVATION OP SCHLUMBERGER APPARENT RESIS-
TIVITY CURVES PROM APPARENT RESISTIVITY CURVES
IN OTHER ELECTRODE CONFIGURATIONS........................133
8.1 Linear filter methods for the conversion of apparent resistivity curves in
other configurations into Schlumberger apparent resistivity curves..............133
8.2 The Patella method of Converting dipole apparent resistivity curves into
Schlumberger apparent resistivity curves................................................135
CHAPTER 9. ITERATIVE INTERPRETATION METHODS..........................141
9.1 Some general considérations................................................................141
9.2 Non-automatic iterative interpretation methods ......................................148
9.3 Examples of application of non-automatic iterative interpretation ..............154
9.4 Automatic iterative interpretation by the method of steepest descent..........160
9.5 Automatic iterative interpretation by solution of matrix équations..............170
9.6 The Marsden method of automatic iterative interpretation ........................174
9.7 The Zohdy method of automatic iterative interpretation............................175
9.8 A fast method of automatic iterative interpretation..................................179
9.9 Examples of application of automatic iterative interpretation ....................185
CHAPTER 10. DIRECT INTERPRETATION METHODS................................193
10.1 Non-automatic direct interpretation methods........................................193
10.2 The Kunetz—Rocroi automatic direct interpretation method....................196
10.3 The Koefoed automatic direct interpretation method..............................201
10.4 The Szaraniec automatic direct interpretation method ............................204
10.5 The revised Koefoed method of automatic direct interpretation................208
10.6 Examples of application of direct interpretation....................................215
CHAPTER 11. THE EFFECTS OF DEVIATIONS FROM THE FUNDAMENTAL
ASSUMPTIONS..................................................................223
11.1 The influence of anisotropy................................................................223
11.2 The influence of a continuous change of the resistivity......................227
11.3 The influence of a slope of the boundary plane......................................231
11.4 The influence of vertical contact planes................................................237
11.5 Marine resistivity sounding measurements..............................................239
CHAPTER 12. COMPLEMENTARY METHODS............................................243
12.1 Introduction....................................................................................243
12.2 Electrical borehole logging..................................................................243
12.3 Model experiments............................................................................250
CHAPTER 13. EXAMPLES OF RESISTIVITY SOUNDING SURVEYS............253
13.1 First example of a resistivity sounding survey........................................253
13.2 Second example of a resistivity sounding survey ....................................260
REFERENCES............................................................................................269
SUBJECT INDEX.................................................................................273
|
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| id | DE-604.BV006894321 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T16:52:03Z |
| institution | BVB |
| isbn | 0444417044 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-004361864 |
| oclc_num | 632542539 |
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| owner_facet | DE-355 DE-BY-UBR DE-20 DE-703 DE-19 DE-BY-UBM DE-188 DE-29 |
| physical | XIV, 276 S. Ill., graph. Darst. |
| publishDate | 1979 |
| publishDateSearch | 1979 |
| publishDateSort | 1979 |
| publisher | Elsevier |
| record_format | marc |
| series | Methods in geochemistry and geophysics |
| series2 | Methods in geochemistry and geophysics |
| spelling | Koefoed, O. 1913- Verfasser (DE-588)1092231390 aut Geosounding principles 1 Resistivity sounding measurements Otto Koefoed Amsterdam Elsevier 1979 XIV, 276 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Methods in geochemistry and geophysics 14A Methods in geochemistry and geophysics ... Koefoed, O. 1913- Sonstige (DE-588)1092231390 oth Patra, H. P. 1937- Sonstige (DE-588)1089293593 oth (DE-604)BV006894320 1 Methods in geochemistry and geophysics 14A (DE-604)BV001889852 14A HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=004361864&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Koefoed, O. 1913- Geosounding principles Methods in geochemistry and geophysics |
| title | Geosounding principles |
| title_auth | Geosounding principles |
| title_exact_search | Geosounding principles |
| title_full | Geosounding principles 1 Resistivity sounding measurements Otto Koefoed |
| title_fullStr | Geosounding principles 1 Resistivity sounding measurements Otto Koefoed |
| title_full_unstemmed | Geosounding principles 1 Resistivity sounding measurements Otto Koefoed |
| title_short | Geosounding principles |
| title_sort | geosounding principles resistivity sounding measurements |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=004361864&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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